News Release Number: STScI-2011-41

Physicist and Former Astronaut John Grunsfeld to Head NASA Science Directorate

December 19, 2011: NASA has named physicist and former astronaut John Grunsfeld as the new
Associate Administrator for the Science Mission Directorate at the agency's
headquarters in Washington, D.C. Grunsfeld will take the reins of the office
effective January 4, 2012. He succeeds Ed Weiler, who retired from NASA on
Sept. 30. Grunsfeld currently serves as the Deputy Director of the Space Telescope Science Institute in Baltimore, which manages the science program of the Hubble Space Telescope and is partner in the forthcoming James Webb Space Telescope.